Retrieval-augmented generation

Retrieval pipelines, vector search, chunking and reranking: how models are grounded in a corpus instead of their weights.

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arXiv Machine Learning
2d ago

Inverse RL Helps Align AI by Imitating Humans

The paper introduces PARED, an approach that uses inverse reinforcement learning to derive an explicit, interpretable reward from expert demonstrations. By training a lightweight discriminator on response-level features, PARED can guide both inference-time reranking and on-policy reinforcement learning, improving alignment for models that have not undergone supervised fine-tuning and further refining those that have. The method also supports contextual alignment, enabling a single policy to adapt its responses to different audience preferences.

By Micha{\l} Wili\'nski, Liu Leqi, Chirag Nagpal
arXiv Machine Learning
2d ago

Physics is the Best Teacher: Consistency Learning for Time-Invariant Operators of Chaotic Dynamics

The paper proposes a method for predicting long‑term behavior in chaotic systems by learning a time‑invariant evolution operator that can jump across large time spans in a single evaluation. It derives consistency equations that the operator must satisfy, incorporating differential and compositional objectives tied to physical dynamics. Experiments on five chaotic systems show that this physics‑distilled consistency approach yields more accurate short‑term trajectories and long‑term statistics, survives temporal extrapolation, and requires only one‑tenth the evaluations of autoregressive rollouts.

By Lufang Chiang, Jiachen Yao, Thomas Y. L. Lin, Anima Anandkumar
arXiv Machine Learning
2d ago

SAGE: Semantic Audio Generative Encoder

SAGE, a 105‑million‑parameter semantic audio generative encoder, compresses music waveforms into compact latent representations by distilling embeddings from a pretrained audio‑text model. It achieves a three‑way balance—high reconstruction quality, rich semantic latent structure, and fast inference—running three times faster than Stable Audio Open while matching or surpassing larger models in listening‑test quality and objective metrics. Across all nineteen latent‑semantics probing tasks, SAGE sets new state‑of‑the‑art performance both within and outside its training domain.

By Francesco Brigante, Luca Cerovaz, Davide Marincione, Giorgio Strano, Luca Zhou, Emanuele Rodol\`a, Michele Mancusi
arXiv Computer Vision
2d ago

AOV-GS: Active Open-Vocabulary Semantic Mapping with 3D Gaussian Splatting

AOV-GS is an active 3D Gaussian mapping system that uses frozen foundation models (SAM and CLIP) to guide exploration toward semantically informative regions. During coarse exploration, it re‑ranks geometrically promising views based on CLIP mask‑embedding novelty from SAM instance segmentation, biasing the robot’s trajectory. The system fits a lightweight scene‑specific language field offline to the collected CLIP embeddings, enabling open‑vocabulary text‑query segmentation on novel views and improving language‑field mIoU by 1.3–1.8 percentage points over geometry‑only planning on Replica and Matterport3D.

By Rodion Shkokov, Tatiana Zemskova, Dmitry Yudin
arXiv Machine Learning
2d ago

Big Claims, Small Margins: Do Reported GraphLLM Gains Survive Simple Baselines?

The paper evaluates whether recent LLM-based node classification methods on text‑attributed graphs truly outperform simple baselines. By tuning four baseline models on the same data splits and comparing them to the best reported LLM results, the authors find that while some gains are modest (e.g., Correct & Smooth trailing by 2.3–2.8 percentage points), several reported improvements remain significant. They also highlight evaluation risks such as test‑set hyperparameter tuning, misuse of test‑pool labels, undisclosed baseline reuse, and inconsistencies across papers.

By Michal Podstawski
arXiv Machine Learning
2d ago

Implicit Feature Reweighting for Label-Free Graph Generalization

SCARCE is a label‑free representation‑learning framework that improves graph‑level out‑of‑distribution generalization. It uses an environment partition of training graphs—derived from metadata or self‑supervised clustering—to warm‑start a variational graph autoencoder and then applies an adversarial confusion mechanism that prevents a discriminator from distinguishing environments while preserving reconstruction fidelity. Theoretical analysis shows that this environment confusion contracts environment‑discriminative directions, effectively reweighting features to reduce reliance on spurious correlations, and experiments on synthetic and DrugOOD datasets demonstrate state‑of‑the‑art OOD performance among label‑free methods.

By Tianjun Yao, Chen Xi, Xinyang Li, Lixian Zhong
arXiv Machine Learning
2d ago

Loopholing All the Way: Language Modeling with pure Self-Conditioning

The paper introduces LAW (Loopholing All the Way), a continuous generative model that relies entirely on Self‑Conditioning (SC) to propagate expected embeddings across diffusion steps, decoding tokens only once at the end. LAW outperforms both discrete and continuous diffusion models on Sudoku, Maze, and TinyGSM benchmarks, achieving higher accuracy and solving a larger proportion of GSM8K problems. Fine‑tuning a pre‑trained Uniform Diffusion Model with LAW significantly boosts its performance, and on OpenWebText LAW approaches autoregressive models while maintaining a favorable Pareto frontier.

By Adrien Deschenaux, Nadezhda Ilieva, Justin Deschenaux, Manuel Madeira, Dorina Thanou, Aur\'elien Lucchi, Antonio Orvieto, Caglar Gulcehre, Pascal Frossard
arXiv Computation and Language
2d ago

Acharya 2.0: An AI Tutor for Self-Learning Subjects in Hindi

arXiv:2610.25192v2 Announce Type: replace Abstract: Text processing is crucial for low-resource languages as it enables the development of tools and technologies that bridge the digital divide and pr...

By Shantipriya Parida, Debasish Dhal, Sonal Khosla, Sambit Sekhar, Muhammed Abdur Rahmaan Kamaldeen
arXiv Computer Vision
2d ago

Towards Explainable Industrial Anomaly Detection via Knowledge-Guided Latent Reasoning

arXiv:2602.09850v3 Announce Type: replace Abstract: Industrial anomaly detection demands precise reasoning over fine-grained defect patterns. However, existing multimodal large language models (MLLMs...

By Peng Chen, Wenqiang Wang, Yunkang Cao, Chengliang Liu, Wei Wang, Mingbo Yang, Li Shen, Wenqi Ren, Xiaochun Cao, Chao Huang